16-year-old Alexis Carter is disappointed in Rihanna for joining in on the cyberbullying about her prom outfit. The Baltimore teen says she is no longer a fan of the singer. Photo: Reuters

Though she is still on an Instagram hiatus, Rihanna is continuing her mean-girl ways on another social media outlet.

The singer took to Twitter on May 9 to mock a prom outfit worn by Alexis Carter, a 16-year-old fan of the singer. The Baltimore teen decided to wear a caped jumpsuit with structured shoulders and a deep V-neck. The custom outfit was similar to a jumpsuit worn by Rihanna in 2010, and Carter thought it would be perfect for her Hollywood-themed prom.

"I was like, 'Oh my God, I love this outfit, I wanna go with this outfit let me go show my mom,' and I was like, 'Mom, mom, mom, I wanna wear this, it's cool, I love it, oh my god,'" Carter told Baltimore's WBFF-TV. A family friend then created the look.

Her jumpsuit was a hit at prom, with Carter telling the station she received numerous compliments from her classmates. "Everybody was saying, 'Oh my god, I love it, it looks nice your body looks good it's different,'" she said.

Once photos of her outfit began to be shared on social media, though, negative comments on the outfit began to surface. The hashtag #PromBat began to trend, with people making memes to mock Carter's outfit. However, it was the comments of one particular user that really surprised Carter.

Rihanna, who Carter now calls her former idol, posted a photo of the jumpsuit she wore that inspired Carter's beside a photo of Carter's replica from prom night. Over Rihanna's photo were the words "IG," while over Carter's image were the words "Real Life." The singer included a sad face with the post and she also posted picture of Carter's outfit beside the "W" logo used by the Wu-Tang Clan.

Carter was not pleased with the dig from the star.

"I was very offended," she said of Rihanna's tweets. "Why throw shade on it when you had on the exact same thing. The poses was different but the outfit wasn't."

Carter says that she is still facing negative comments and cyber-bullying about her outfit and that she is disappointed in Rihanna's actions.